US9859780B2 - Vibration motor - Google Patents

Vibration motor Download PDF

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Publication number
US9859780B2
US9859780B2 US15/062,098 US201615062098A US9859780B2 US 9859780 B2 US9859780 B2 US 9859780B2 US 201615062098 A US201615062098 A US 201615062098A US 9859780 B2 US9859780 B2 US 9859780B2
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driver
vibrator
vibration motor
assembled
weight
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US15/062,098
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US20170033673A1 (en
Inventor
Hongxing Wang
Lubin Mao
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AAC Technologies Pte Ltd
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AAC Technologies Pte Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system

Definitions

  • the present disclosure generally relates to vibration motors, and more particularly to a vibration motor used in a portable consumer electronic device.
  • a portable consumer electronic device such as a wireless communication device, generally includes a vibration motor sued for generating tactile feedback.
  • a flat linear vibration motor includes an elastic member, a vibration unit suspended by the elastic member, and a housing for accommodating the elastic member and the vibration unit therein.
  • the elastic member is generally welded to the vibration unit.
  • Such a vibration motor only has one resonant frequency, at which the vibration motor has maximum vibration amplitude. For some certain applications, the vibration motor needs two resonant frequencies for performing desired requirements.
  • Such a typical vibration motor as described in JP Publication No. 1993-85192, cannot satisfy the requirements.
  • FIG. 1 is an isometric and exploded view of a vibration motor in accordance with a first exemplary embodiment of the present disclosure.
  • FIG. 2 is a cross-sectional view of the vibration motor in FIG. 1 .
  • FIG. 3 is a cross-sectional view of a vibration motor in accordance with a second exemplary embodiment of the present disclosure.
  • FIG. 4 is an isometric and exploded view of a vibration motor in accordance with a third embodiment of the present disclosure.
  • FIG. 5 is a cross-sectional view of the vibration motor in FIG. 4 .
  • a vibration motor 10 in accordance with a first embodiment of the present disclosure, comprises a cover 11 , a substrate 12 forming an accommodation space together with the cover 11 , a first vibrator 13 accommodated in the accommodation space, a second vibrator 14 opposed to and keeping a distance from the first vibrator 13 , and a plurality of guiding members 16 for suspending the first and second vibrators 13 , 14 in the accommodation space.
  • the first vibrator 13 includes a first weight 131 and a first driver 132 assembled with the first weight 131 .
  • the first weight 131 is provided with a through hole and the first driver 132 is received in the through hole.
  • the first weight 131 further includes a first guiding slot 131 a .
  • the second vibrator 14 includes a second weight 141 and a second driver 142 assembled with the second weight 141 .
  • the second weight further includes a second guiding slot 141 a.
  • the second weight 141 is provided with a through hole and the second driver 142 is received in the through hole.
  • the fixing member 15 includes a support 151 and a third driver 152 carried by the support 151 .
  • the guiding member 16 comprises a guide 161 and a spring wound around the guide 161 .
  • the first vibrator 13 When assembled, one end of one of the guides 161 is positioned on the cover 11 and the other end of the guide 161 is partially received in the first guiding slot 131 a, and one end of the corresponding spring 162 is positioned on the cover 11 and the other end of the corresponding spring 162 is abutting against an edge of the first weight 131 .
  • the first vibrator 13 is supported and suspended by the guide 161 , and the spring 162 provides the first vibrator 13 with restore force.
  • the first vibrator 13 is capable of vibrating along the guide 161 .
  • the second vibrator 14 is supported and suspended by the guide 161 , and the spring 162 provides the second vibrator 13 with restore force.
  • the second vibrator 13 is capable of vibrating along the guide 161 .
  • the first vibrator 13 is opposed to and keeping a distance from the second vibrator 14 for forming a gap 50 therebetween.
  • the guiding member suspending the first vibrator is the first guiding member, and correspondingly, the guide and the spring of the first guiding member is defined as the first guide and the first spring.
  • the guiding member suspending the second vibrator is the second guiding member, and correspondingly, the guide and the spring of the second guiding member is defined as the second guide and the second spring.
  • the support 151 of the fixing member 15 comprises a top 151 a for carrying the third driver 152 , a side 151 b extending substantially vertically to the top 151 a, and a bottom 151 c extending particularly to the side 151 b.
  • the bottom 151 c is assembled with the cover 11 .
  • a height of the side 151 b is such configured that the top 151 a and the third driver 152 is located in the gap 50 , and the third driver 152 is located right between the first driver 132 and the second driver 142 .
  • the interaction between the first driver 132 and the third driver 152 drives the first vibrator 13 to vibrate along the fixing member 16 assembled with the first driver 13 .
  • the interaction between the second driver 142 and the third driver 152 drives the second vibrator 14 to vibrate along the fixing member 16 assembled with the second vibrator 14 .
  • the first driver 13 is same to the second driver 14 .
  • the first and the second drivers are magnets
  • the third driver 152 is a coil. The magnet and the coil cooperatively produce Ampere Force which serves as driving force to drive the first or second vibrator to vibrate.
  • the first and second drivers are coils and the third driver is a magnet.
  • each of the vibrators is provided with two guiding members configured to be disposed at two sides of the corresponding vibrator.
  • a vibration motor 10 ′ in accordance with a second exemplary embodiment of the present disclosure, is similar to the vibration motor in the first embodiment.
  • the difference between the second embodiment and the first embodiment is that each of the vibrators is provided with one guiding member 16 ′ penetrating the corresponding vibrator. Two ends of each guiding member 16 ′ are disposed out of the corresponding vibrator. Another word, the guiding slot is a through hole penetrating completely through the corresponding vibrator.
  • the third driver i.e., the coil is electrified
  • the interaction between the coil and the first driver will drive the first vibrator to vibrate along its vibration direction, i.e. along the guide.
  • the interaction between the coil and the second driver (the magnet) will drive the second vibrator to vibrate along the guide.
  • the guides supporting the first and second vibrators are parallel to each other, therefore, the first and second vibrators are capable of vibrating along parallel directions.
  • the guides supporting the first and second vibrators can be configured to be perpendicular to each other, and the vibration directions of the first and second vibrators are perpendicularly to each other.
  • the first vibrator will vibrate with maximum amplitude.
  • the second vibrator will vibrate with maximum amplitude.
  • a vibration motor in accordance with a third embodiment of the present disclosure is similar to the first embodiment.
  • the difference between the third embodiment and the first embodiment is that, in the third embodiment, the first guiding member 73 of the first vibrator 63 is configured to be perpendicular to the second guiding member 84 of the second vibrator 64 , while in the first embodiment, the first guiding member is parallel to the second guiding member.
  • the first vibrator 63 is capable of vibrate along the first guiding member 73
  • the second vibrator 64 is capable of vibrating along the second guiding member 84 that is perpendicular to the first guiding member 73 .

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
US15/062,098 2015-07-31 2016-03-05 Vibration motor Active 2036-09-14 US9859780B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201520570828.0U CN205051551U (zh) 2015-07-31 2015-07-31 振动电机
CN201520570828U 2015-07-31
CN201520570828.0 2015-07-31

Publications (2)

Publication Number Publication Date
US20170033673A1 US20170033673A1 (en) 2017-02-02
US9859780B2 true US9859780B2 (en) 2018-01-02

Family

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US15/062,098 Active 2036-09-14 US9859780B2 (en) 2015-07-31 2016-03-05 Vibration motor

Country Status (3)

Country Link
US (1) US9859780B2 (ja)
JP (1) JP6312651B2 (ja)
CN (1) CN205051551U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170110920A1 (en) * 2015-10-15 2017-04-20 AAC Technologies Pte. Ltd. Double resonance vibration motor

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CN105703596B (zh) * 2016-03-29 2020-05-01 金龙机电股份有限公司 一种线性电机
CN105871165B (zh) * 2016-03-31 2019-10-18 金龙机电股份有限公司 一种线性电机
CN106208603B (zh) * 2016-08-12 2018-09-28 歌尔股份有限公司 磁路水平布置的双振动系统的线性振动器
CN106230220B (zh) * 2016-08-12 2018-09-28 歌尔股份有限公司 一种双振动系统的线性振动器
CN106253624B (zh) * 2016-08-12 2018-09-28 歌尔股份有限公司 一种双振动系统的线性振动器
CN106253623B (zh) * 2016-08-12 2018-09-28 歌尔股份有限公司 一种设置有缓冲垫的双振动系统的线性振动器
CN106300869B (zh) * 2016-08-31 2019-05-14 浙江省东阳市东磁诚基电子有限公司 一种同时具备x轴和z轴振动反馈的线性马达
CN106374714B (zh) * 2016-11-02 2018-12-11 深圳市兆业电子科技有限公司 永磁直线电机
CN106622923A (zh) * 2017-01-04 2017-05-10 歌尔股份有限公司 一种振动模组以及振动模块
CN106849587B (zh) * 2017-03-14 2022-04-05 歌尔股份有限公司 线性振动马达及电子设备
GB2572349B (en) * 2018-03-27 2021-08-11 Perpetuum Ltd An electromechanical generator for converting mechanical vibrational energy into electrical energy
GB2572350B (en) * 2018-03-27 2023-01-25 Hitachi Rail Ltd An electromechanical generator for converting mechanical vibrational energy into electrical energy
JP7032208B2 (ja) * 2018-03-30 2022-03-08 日本電産サンキョー株式会社 アクチュエータ、およびその製造方法
JP7063691B2 (ja) * 2018-04-06 2022-05-09 フォスター電機株式会社 振動アクチュエータ
CN208589887U (zh) * 2018-08-03 2019-03-08 瑞声科技（南京）有限公司 振动电机
CN208589889U (zh) * 2018-08-03 2019-03-08 瑞声科技（南京）有限公司 线性振动电机
CN208675083U (zh) * 2018-08-03 2019-03-29 瑞声科技（南京）有限公司 线性振动电机
CN208589892U (zh) * 2018-08-03 2019-03-08 瑞声科技（南京）有限公司 振动电机
JP6750825B2 (ja) * 2018-08-28 2020-09-02 ミネベアミツミ株式会社 振動アクチュエータ及び電子機器
US11520408B2 (en) * 2018-11-19 2022-12-06 Lg Electronics Inc. Vehicle display apparatus
JP7154379B2 (ja) * 2019-03-12 2022-10-17 アルプスアルパイン株式会社 電磁駆動装置及び操作装置
WO2020208168A1 (de) 2019-04-11 2020-10-15 Continental Engineering Services Gmbh Schwingungsaktuator für steife strukturen zur hochleistungs-basswiedergabe im automobilbereich
CN110022045B (zh) * 2019-04-28 2020-06-30 维沃移动通信有限公司 一种振动器及终端
US20210013786A1 (en) * 2019-07-08 2021-01-14 West Virginia University High frequency resonant linear machines
US20210067023A1 (en) * 2019-08-30 2021-03-04 Apple Inc. Haptic actuator including shaft coupled field member and related methods
CN212137520U (zh) * 2020-02-25 2020-12-11 瑞声科技(新加坡)有限公司 双频马达
JP7410791B2 (ja) * 2020-04-28 2024-01-10 ニデックインスツルメンツ株式会社 アクチュエータ
CN113572333B (zh) * 2020-04-28 2024-03-29 日本电产三协株式会社 致动器
CN215772886U (zh) * 2020-07-10 2022-02-08 日本电产株式会社 振动马达及触觉器件
JP2022049071A (ja) * 2020-09-16 2022-03-29 株式会社東芝 振動発電機
CN213461491U (zh) * 2020-09-29 2021-06-15 瑞声科技(新加坡)有限公司 振动马达
DE102020213768A1 (de) * 2020-11-02 2022-05-05 Continental Engineering Services Gmbh Aktuator zur Anregung von Schwingungen umfassend einen Antrieb mit verbesserter Dämpfung
CN112564541B (zh) * 2020-12-09 2021-09-28 上海大学 一种用于低频运动的电磁摩擦电混合式能量收集器
CN217388499U (zh) * 2021-05-06 2022-09-06 瑞声光电科技(常州)有限公司 线性振动电机

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US20110062804A1 (en) * 2009-09-11 2011-03-17 Samsung Electro-Mechanics Co., Ltd. Linear vibration motor
US20110101796A1 (en) * 2009-10-29 2011-05-05 Nidec Copal Corporation Vibration actuator
US20130200732A1 (en) * 2012-02-07 2013-08-08 Lg Electronics Inc. Vibration motor and mobile terminal having the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110001365A1 (en) * 2009-07-01 2011-01-06 Park Seok Jun Linear vibration motor
US20110012441A1 (en) * 2009-07-17 2011-01-20 Hwa Young Oh Horizontal linear vibrator
US20110062804A1 (en) * 2009-09-11 2011-03-17 Samsung Electro-Mechanics Co., Ltd. Linear vibration motor
US20110101796A1 (en) * 2009-10-29 2011-05-05 Nidec Copal Corporation Vibration actuator
US20130200732A1 (en) * 2012-02-07 2013-08-08 Lg Electronics Inc. Vibration motor and mobile terminal having the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170110920A1 (en) * 2015-10-15 2017-04-20 AAC Technologies Pte. Ltd. Double resonance vibration motor
US10008894B2 (en) * 2015-10-15 2018-06-26 AAC Technologies Pte. Ltd. Double resonance vibration motor

Also Published As

Publication number Publication date
CN205051551U (zh) 2016-02-24
JP2017029972A (ja) 2017-02-09
US20170033673A1 (en) 2017-02-02
JP6312651B2 (ja) 2018-04-18

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